Xianxian Zhang

Title: Innovations by Xianxian Zhang: A Leader in Acoustic Technology

Introduction

Xianxian Zhang, based in Santa Clara, CA, is a notable inventor with a remarkable portfolio of six patents. His work primarily focuses on advances in communication technology, particularly in improving audio detection and cancellation systems.

Latest Patents

One of his significant contributions is a patent for methods designed to detect double-talk. This innovative system enhances double-talk detection by using inputs from microphone signals into an adaptive filter. The system analyzes how the filter adapts to the signals to determine whether double talk is occurring. By monitoring changes in filter coefficients, the device can differentiate between single-talk and double-talk conditions, while also tracking the location of speech over time.

Another notable patent addresses acoustic echo cancellation control. This technology employs techniques to enhance acoustic echo cancellation by determining energy levels from microphone audio data, which represents both near-end and far-end audio. When near-end audio is detected without corresponding far-end audio, the system intelligently shuts off or bypasses the acoustic echo cancellation to prevent distortion. This advancement helps ensure clearer audio communication in varied environments.

Career Highlights

Xianxian is currently employed at Amazon Technologies, Inc., where he contributes to the development of cutting-edge communication technologies. His insights and innovations help in the creation of more efficient and user-friendly audio systems, benefiting a wide range of applications across different technologies.

Collaborations

During his career, Zhang has collaborated with several talented individuals, including Trausti Thor Kristjansson and Philip Ryan Hilmes. These collaborations enhance the development process and foster a creative atmosphere where innovative ideas can flourish.

Conclusion

Xianxian Zhang's impressive contributions to the field of audio technology demonstrate his commitment to innovation. With his latest patents focusing on double-talk detection and acoustic echo cancellation, he remains a vital part of the team at Amazon Technologies, Inc., continually pushing the boundaries of what is possible in communication technology.